Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Basics (Retired) Storing and Tracking Information with Variables Using String Methods

Fidel Zv
Fidel Zv
1,625 Points
Posted by Fidel Zv
Fidel Zv
1,625 Points

Help I am stuck on this challenge and I am trying to put in the code but its showing me syntax error

The challenge is to...Finally, add a # symbol and lastName in uppercase to the end of the userName string. The final value of userName is "23188XTR#SMITH".

app.js 
var id = "23188xtr";
var lastName = "Smith";

var userName = id.toUpperCase('#') + lastName;
index.html 
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="app.js"></script>
</body>
</html>
mouhamadoudiouf
mouhamadoudiouf
14,915 Points

Hello, as far as I know, the function .toUpperCase() doesn't take any value inside the parentheses. You can just put var userName = id.toUpperCase() + "#" + lastName.toUpperCase() .It should work.

Hope this helped :-)

Dan Maliano
Dan Maliano
12,142 Points
Dan Maliano
Dan Maliano
12,142 Points 
var userName = id.toUpperCase() + "#" + lastName.toUpperCase();
Derek Hutson
Derek Hutson
9,740 Points
Derek Hutson
Derek Hutson
9,740 Points

Almost! Make the # into its own string, and capitalize the lastName and you have it! var userName = id.toUpperCase( ) + '#' + lastName.toUpperCase( );

1 Answer

Camilo Lucero
Camilo Lucero
27,692 Points
Camilo Lucero
Camilo Lucero
27,692 Points

Your current result is "23188XTRSmith" instead of the "23188XTR#SMITH" that we want to get.

This is because you are only converting to uppercase the id, but not the lastname.

You could get away with just using twice the toUpperCase method, but a smarter way is to concatenate first and use the method just once on the result:

var id = "23188xtr";
var lastName = "Smith";

var userName = (id + '#' + lastName).toUpperCase();

This way your code has better readability and less operations.